Gas-chain fixture.



E, DE W. PITCHER.

GAS CHAIN FIXTURE.

APPLICATION FILED AUG. 1, 1912.

Patented Deo. 10, 1912.

WITNESSES /Mamww the gas-carrying tube to the end members of link ci' the series of links of which the fix- ROCHESTER, NEW YORK. ASSIGNOR 'ro wELsBAcH LIGHT COMPANY, OF GLOUCESTER CITY, NEW JERSEY,A CORPORATION 0F NEW GAS-CHAIN Specification of Letters Patent.

FIXTURE.

Patented Dec. 10, 1912.

pplicaton filed August 1, 1912". Serial No. 712,728.

f from i 'may concern:

known that l', FREDERIC DEWI'r-r Firm-ien, resident of Rochester, Monroe county, New York, have invented a new and useful Improvement in Gas-Chain Fixtures` of 'which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a side elevation, with parts in section, oi a gas chain and fixture embodying my invention; 2 is, a view mainly in side elevation but with one of the links in section, showing the attachment of the upper end of the chain; and Fig. 3 is an enlarged sectional view showing how the' tubing is connected to thecend link.

My invention h as relation to gas chain fixtures, such as are employed in suspending an overhead burner. 'rllhese lixtures consist of a plurality of loosely engaged links, the gas being conducted through a tube which interlaces or is adjacent to othe links. As heretofore constructed, it has been necessary solder or hraze the ends or terminals of the fixture.

The obj-ect of invention is to obviate necessi y for these soldered or brazed connections; and to provide means whereby a gas fitter can readily supply and put up any required leroh of the chain fixture without the neces ty oi taking it to a shop and having the fg supply tube brazed or soldered in position. in lieu of these brazed or soldered. joints, l provide connections which ere much stronger, and which will notl leak when too much strain is placed on them, or by reason ci some weak point in the joint.

Referring to the accompanying drawings, the 'numeral 2 4desiinates the usual ceiling bellwhich surrounds the gas supply pipe, and which terminates at its lower end 1n the neck portion 3 which receives the upper the ture is formed. The upper link Llhas at its upper end the interiorly threaded 'socket member 5, which screws onto 'the lower end or" the gas supply pipe. 6 within the neck portion 3 ci the bell. The lower link l of the chain is provided with a similar socket portion .7, which screws onto the burner pipe (not shown),

nec-ted thereto; substantial-ly as described.

clamping screws 12 are inserted within the socket portions V5, in the manner clearly shown in Figs. 1 and 8. I Thesescrews have beveled ends which interiorly engagel the dared and' beveled ends of the gas 'pipe and jam the outer wall of the tube against the sockets in the links and make gas-tight joints therewith.

It will be readily seen that the gas fitter can use a vchain of any desired length, by removing links therefrom or addin additional links, 4and thathe can rea ily cut 75 the gas supply pipe 8 to a corresponding length andmake the connections between it andthe end links inthe manner described, without the necessity of takin it to a sho and without the use of any grazed or sol- 80. dered joints.

I do not desire to limit myself to the preoise construction and arrangement which I have herein shown and described, as it will be obvious, that the details may be'varied- 85 without departing from the spirlt and scope of my invention as defined in the appended. claims.

l. A gas chain fixture, comprising a series of llinks, and a gas1 supply pipe extending adjacent to the links, the end links having socket members, and the ends of the gas pipe extending into said socketmembers and con- 2. A gas chain fixture, having the end links of the chain provided with threaded socket portions, and a gas supply pipe hav1 ing its endsextending into the end ortions of the end-links and dared outwar ly, and 10o hollow screw pl ugs seated in the, socket portions and engaging the flared ends of vthe pipe; substantially as described.

3. A gas chain xturehaving an end link provided with a socket,'a .gassupply pipe 105 extending into theend portion of the link and having its' end portion flared outwardly, and a screw plug' seated in said socket porm ineens@ tion and making e joint vconnection with the tight joint Without the use of solder or flared. end of the pipe; substantially as debrazing; substantially as described. 10 Scribed. In Joeslsii'nony whereof, I have hereunto set 4. A gas chain nxt-ure having en end link l my hand.

5 provided with e socket portion, and e gas FREDERIC DE WITT PITCHER.v

YVitnesses:

FRANCIS J. BURNS, C. E. RIGHMAN.

pipe ext-ending to seid socket portion, and mechanical means bem/een the ends of the pipe and the socket portion which make e 

